Septiana Anggraini, Septiana
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Vegetation Stratification in Semarang Coastal Area Tri Martuti, Nana Kariada; Anggraito, Yustinus Ulung; Anggraini, Septiana
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 1 (2019): April 2019
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (929.498 KB) | DOI: 10.15294/biosaintifika.v11i1.18621

Abstract

The coastal region is a dynamic area as a transition between the land and the sea. The ecological function of the coastal area is affected mainly by the structure and composition of vegetation factors. This study aims to analyze the vegetation stratification of terrestrial to marine ecosystems in the coastal area of Semarang City, Central Java Indonesia as an effort to manage a sustainable ecosystem. A striped path combined with nested plots were applied in this research. The plots were placed by systematic purposive sampling based on the homogeneity of vegetation found along with the topographic conditions of the research location. Analysis of qualitative data used by way of inventorying plants and identifying plants based on morphological characteristics that can be observed. Data analysis was performed based on the results of an inventory of the structure and composition of vegetation obtained including the index of diversity, evenness, and species richness. The results of plant identification found in the three locations recorded 51 plant species consisting of 29 families. The different types of vegetation in Taman Lele, Tapak, and Tirang Beach affect the diversity, richness, and evenness index of vegetation in all three locations. Therefore, it can be concluded that different environmental factors contribute to the vegetation stratification from the land to the sea. This is the first report on the Semarang coastal area vegetation stratification. The results can have a positive impact on the coastal area conservation strategy for sustainable management, as well as to be a media for environmental education purpose.
ANALISIS SENYAWA INHIBITOR ENZIM KATEPSIN KULIT IKAN PATIN TERHADAP PENUNDAAN KEMUNDURAN MUTU CUMI-CUMI Kusuma, Fitriana Dian; Susanti, R.; Anggraini, Septiana; Arlinda, Dyken Dwi
Bioeksperimen: Jurnal Penelitian Biologi Vol 6, No 2: September 2020
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v6i2.8500

Abstract

Daya simpan cumi-cumi dipengaruhi oleh aktivitas enzim katepsin yang menyebabkan kemunduran mutu cumi-cumi pada hari ke tiga setelah fase post rigor. Aktivitas inhibitor katepsin alami dari ikan patin berpotensi menghambat kemunduran mutu ikan jenis lain. Penelitian ini bertujuan untuk menganalisis senyawa inhibitor enzim katepsin dari kulit ikan patin terhadap kemunduran mutu cumi-cumi. Penelitian didesain dengan rancangan acak dengan pola dua faktorial. Faktor pertama adalah konsentrasi inhibitor enzim katepsin yang diekstrak dari kulit ikan patin, dengan empat variasi yaitu 1:0; 1:1; 2:3; dan 3:2. Faktor kedua adalah lama rendaman/inkubasi cumi-cumi pada fase post rigor selama 3, 7, dan 9 hari dalam ekstrak inhibitor. Setelah direndam, aktivitas enzim katepsin pada cumi-cumi diukur dengan metode spektrofotometri. Setelah didapatkan absorbansi maka aktivitas enzim dan persentase penghambatannya dihitung. Hasil uji Two Way Annova menunjukan bahwa konsentrasi berbeda nyata dengan peresentase penghambatan sedangkan lama penyimpanan tidak berbeda nyata dengan taraf kepercayaan 0,05. Konsentrasi kemudian diuji lanjut dengan Duncan dan konsentrasi yang paling efektif untuk menghambat aktivitas enzim adalah konsentrasi 3:2 dengan persentase penghambatan 57%. 
Vegetation Stratification in Semarang Coastal Area Tri Martuti, Nana Kariada; Anggraito, Yustinus Ulung; Anggraini, Septiana
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 1 (2019): April 2019
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v11i1.18621

Abstract

The coastal region is a dynamic area as a transition between the land and the sea. The ecological function of the coastal area is affected mainly by the structure and composition of vegetation factors. This study aims to analyze the vegetation stratification of terrestrial to marine ecosystems in the coastal area of Semarang City, Central Java Indonesia as an effort to manage a sustainable ecosystem. A striped path combined with nested plots were applied in this research. The plots were placed by systematic purposive sampling based on the homogeneity of vegetation found along with the topographic conditions of the research location. Analysis of qualitative data used by way of inventorying plants and identifying plants based on morphological characteristics that can be observed. Data analysis was performed based on the results of an inventory of the structure and composition of vegetation obtained including the index of diversity, evenness, and species richness. The results of plant identification found in the three locations recorded 51 plant species consisting of 29 families. The different types of vegetation in Taman Lele, Tapak, and Tirang Beach affect the diversity, richness, and evenness index of vegetation in all three locations. Therefore, it can be concluded that different environmental factors contribute to the vegetation stratification from the land to the sea. This is the first report on the Semarang coastal area vegetation stratification. The results can have a positive impact on the coastal area conservation strategy for sustainable management, as well as to be a media for environmental education purpose.